Which set could represent the side of a triangle

A.4in,6in,10in
B.4in,5in,10in
C.5in,6in,12in
D.5in,5in,9in

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.

If the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?